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Angle's Classification is devised in 1899 by father of Orthodontic, Dr Edward Angle to describe the classes of malocclusion, widely accepted and widely used since it was published. Angle's Classification is based on the relationship of the mesiobuccal cusp of the maxillary first molar and the buccal groove of the mandibular first molar. [3 ...
The malocclusion classification is based on the relationship of the mesiobuccal cusp of the maxillary first molar and the buccal groove of the mandibular first molar. If this molar relationship exists, then the teeth can align into normal occlusion. According to Angle, malocclusion is any deviation of the occlusion from the ideal. [4]
The Angle Orthodontist, founded in 1930, is the official publication of the Edward H. Angle Society of Orthodontists, society established in 1922, and is published bimonthly in January, March, May, July, September and November by The EH Angle Education and Research Foundation Inc. [6] In 1901, he also founded the Society of Orthodontists, which ...
Three important angles used in his analysis are: 1. Saddle Angle - Na, S, Ar 2. Articular Angle - S-Ar-Go, 3. Gonial Angle - Ar-Go-Me. In a patient who has a clockwise growth pattern, the sum of 3 angles will be higher than 396 degrees. The ratio of posterior height (S-Go) to Anterior Height (N-Me) is 56% to 44%.
Classification of occlusion and malocclusion plays an important role in diagnosis and treatment planning in orthodontics. In order to describe the relationship of the maxillary molars to the mandibular molars, the Angle’s classification of malocclusion has commonly been used for many years. [8]
In 1895 Edward Angle, a mid-North American dentist, published a book on the classification of bad bites - a term he latinised and popularised as malocclusion. The modern discipline of orthodontics was begun by the establishment of the Angle classification of adult first molar relationship.
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By the beginning of the 20th century, orthodontics had become more than just the straightening of crooked teeth. The concept of ideal occlusion, as postulated by Angle and incorporated into a classification system, enabled a shift towards treating malocclusion, which is any deviation from normal occlusion. [7]